CMS Data Processing Workflows during an Extended Cosmic Ray Run
CMS Collaboration
TL;DR
This paper details the data processing workflows of the CMS experiment during a month-long cosmic ray data collection, focusing on data flow, calibration, and analysis procedures for extended operation readiness.
Contribution
It introduces the comprehensive data workflows and system integration used during the CMS Cosmic Run At Four Tesla, demonstrating readiness for extended data collection periods.
Findings
Recorded 270 million cosmic ray events
Successfully calibrated and aligned detector systems
Validated data processing workflows for extended operation
Abstract
The CMS Collaboration conducted a month-long data taking exercise, the Cosmic Run At Four Tesla, during October-November 2008, with the goal of commissioning the experiment for extended operation. With all installed detector systems participating, CMS recorded 270 million cosmic ray events with the solenoid at a magnetic field strength of 3.8 T. This paper describes the data flow from the detector through the various online and offline computing systems, as well as the workflows used for recording the data, for aligning and calibrating the detector, and for analysis of the data.
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